mores(pronounced moray) customs, conventions, practices: The settlers brought the mores of the old country with them.Not to be confused with:morays ? tropical eels having porelike gill openings and no pectoral fins: moray eelAbused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embreemo·res (môr??z?, -?z)pl.n.1. The accepted traditional customs and usages of a particular social group.2. Moral attitudes.3. Manners; ways.[Latin m?r?s, pl. of m?s, custom; see m?- in Indo-European roots.]Usage Note: Although educated 19th-century speakers of English would pronounce mores as (môr??z) according to the customary pronunciation of Latin in English-speaking countries at that time, 75 percent of the Usage Panel in 2005 found this same pronunciation unacceptable (although 5 percent actually preferred it). Nowadays, the accepted pronunciation is (môr??z), with a long a as in days and a (z) sound at the end. It is incorrect to pronounce it as a single syllable (môrz), and the pronunciation ending with an (s) sound, which more closely resembles the way the Latin word was actually pronounced by the Romans, may sound pretentious.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.mores (?m??re?z) pl n (Sociology) sociol the customs and conventions embodying the fundamental values of a group or society[C20: from Latin, plural of m?s custom]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014mo?res (?m?r e?z, -iz, ?mo?r-) n.pl. folkways of central importance accepted without question and embodying the fundamental moral views of a social group. [1905?10;